I paid for one month to try it and just finished. I don't have much experience with other services because of the costs but I had no problems with VPNOneClickPro and left my system attached to my TV connected to their VPN for almost the entire month (except for when I shut it down) and only had one random disconnect which could have been from Comcast doing a recent update to the cable modem software in the middle of the night. I didn't bother to investigate further.

Web browsing was generally the same speed. Streaming speeds with Netflix while connected to their US server were very good - no stuttering or quality loss, only an slightly increased start time by a few seconds. Torrents also worked fine the whole month but I don't use it for much - only shows I miss or that aren't available here and I don't have Transmission configured to use crazy bandwidth.

The app is a bit cheesy looking and if the AppStore bothers people I think you can go right to their site and buy their services (Don't hold me to that!) but what the app does is allow you to bill you through your iTunes account rather than handing a company you don't know your CC info. I think that is a plus. You then get an activation email with a randomly generated username and password along with the instructions on how to add all the servers to your networking preferences through System Preferences.

It worked well enough for me that I am going to plunk down my $20 to pay for a year and then I don't need to even look at their app again for a long while.